Type-writing machine.



No. 866,196. PATENTED SEPT. 17, 1907.

G. GABRIBLSON. TYPE WRITING MACHINE.

APPLIUATHX FILED APR. 29, 1904.

3 BHEBTB-BHEETI.

1? a9 18 43 11 0 J #7/ 76" :19: F r a UNITED sing e PATENT OFFICE.

CARL GABRIELSON, ,OF SYRACUSE, NEW YORK, ASSIGNOR TO L. .0. SMITH AND BROS. TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

'IYFE-WBITING MACHINE.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed April 29,1904. sis-n1 s6. 205.641.

The invention is particularly described in the following specification and illustrated in the accompanying drawing, in which,

Figure 1 is a top plan view of'the line spacing mechelnism showing also the right ends'of the carriage and platen; Fig. 2 is a section on the line A- -A of Fig. l, the ratchet-wheel being partly broken away and the spacing pawl being shown in its normal position; Fig. 3 is a detail view showing the stop for limiting the movement of the line spacing lever; Fig. 4 is a right end 7 view of the carriage frame with the spacing pawl and space regulating device attached, the carriage handle being removed; Fig. 5 is a. side view of the pawl and ratchet mechanism, similar to that shown in Fig; 2,

but showing the pawl moved into an intermediate po sition and engaging the ratchet-wheel; Fig. 6 is a. side view of the pawl end ratchet, showing the pawl at the limit of its movement; Fig. 2' is a side view, partly in section, of the space regulating device and the portion of the carriage frame to which it is attached, and Fig. 8 is-s. section on the line B of Fig. 1; Fig. 9 is shview showing the line space pawl in several positions. K

Referring to the drawing, 1 and 2 indicate the back and right end here respectively of the carriage frame,

. and 3 indicatesjthe platen whichis mounted upon a shaft 4. The platen shaft is journaled in a flanged sleeve or hearing 5 which re'stswithin a groove or depression 6 in the upper side of the right end but 2, and a sleeve similarly aminged in a corresponding groove in the left end ithe carriage, (not shown). As shown in Fig. 8, tli e' sleeves are provided with annular flanges which prevent longitudinal movement of. the sleeves in their seats. The platen is constructed in the usual-merino! with a ratchetwheel 7 at one end having a boss 8 which is secured to the shaft and shuts against the adjacent sleeve or bearing 5, thus preventing endwise movement of the shaft and platen. The usual knob 9 for turning the platen is provided, being secured to the-shaft hy'a sleeve or boss 10 which abuts against the outer end of the besring fi. The platen slmftrturns freely within the sleeve besrings 5 and each bearing is locked within its seat 6 by means or an adjustable locking plate 11 which is securedtp the top of theerid baa: oi the platen frame by s set screw 12 through a. longitudinal slot 13 in the rear and return movement of the pawl.

onusut The locking plate is or spring metal and its forward end normally rests upon the sleeve 5 hotween the flanges, as shown in Figs. 1 and-8, thus holding the platen firmly in place without putting any 1m necessary friction upon the shaft. When it is desired to remove the platen, the set screws 12 may he loosened and the locking plates moved backward by means of handles 11 a, s'uflicient distance touncover the grooves 6, when it it obvious thatthe platen and its sleeve bearings may be removed bodily from the carriage.

A spring arm 14 connected to the platen carriage, carries a roller 15 which bearsageilnst the ratchet-teeth constituting the usual holding dog -to prevent free movement of the platen.' V V i There is a bearing 16 upon the frame bar 2, in front.

of the platen shaft and at right. angles thereto and a short shaft 17 is journaled within said bearing and secured against longitudinal movement therein by a sleeve 18 secured to'the rear end of the shaft and fitting between the rear end of the bearing and a shoulder 19. The handle 20, by means of which the carriage is returned from the leftvto the right end oi the machine,. is rigidly secured to the'shait 17 by suitable means, such as the pin 21 passing through the handle and the shaft. When the handle is grasped and pulled in the direction of the arrow {Fig.4} to return the carriage, it willbe seen that the she-it l7 will be turned upon its axis, and an 9.211122 which projects from the side of the sleeve 18 toward the platen, will be rocked downwardly.

This arm 22 beers upon the upper end of a pin or pawl 27' for e and moving the ratchet-wheel.

A spring 28'coiled around the stud 26 and connected to the bell crunk lever, normally holds the parts;in

the positions shown in Fig. 2, with the pawl out of engagement with the ratchet-wheel and the horizontal arm of lever 25 abutting pgainst the lower end of the lug or guide 24, which guide forms a stop to limit the The free end of the pawl, in its retracted position, is normally supported by an arm or hand piece 29 which projects laterally from the pawl and rests upon, a camshaped flange 30 forming part of a space regulating device swhich is hereinafter described. The paw127 is normally pressed gently downward by aspring 31 having one end securdto the iree end of the pew] and its opposite end engaging axnotch 32 in the arm of the 'hll crsnklever. The spring 31 also serves to hold the line space pawl in any desired inoperative position dent of the way when the platen is being removed, asillustmted in Fig. 9. When thepswlfl? is thrown hack the spring engages l'riciiouully with the iullllll end of the lcvcr 25 :llltl tho p-.tw| will thus be held Stdidolltll) in any position. in Fig. tl it is shown in full lines in one posiliou and dotted lines in another.

When the handle is grasped and pulled to the right. as indicated by the arrow in Fig. l, it will be seen that the rocking of the shell [7 and consequent dcprcssion of the plunger 23, will rock the bell-crank lever 25 and move the pawl rearward into engagement with the ratchet-wheel, as shown in Fig. 5. and the ratchetwhoel will be turncd until a stop arm 33 which is con ncctcd with the pawl and projects downwardly therefrom, engages the ratchet-wheel. as shown in Fig. 6, and prevents further moveinent of the pawl. he rocking of the shaft 17 is also limited by tistop pin 34 (Fig. 33) secured to the inntr end of the handle 20 and projecting into a slot 34 in the abutting end of the bearing 16 at its lower side.

The distance between the lines of print is regulated by means of the space regulator a which consists of a slide 35 adjustably secured upon the frame end 2 and having upon its rear end thitiange 30, the latter having preferably inclined surfaces 30 and 30". This slide is adjustably held by means of screws 36 passing through longitudinal slots 37 in the slide. The spaceregulntor may be moved backward and forward and may be locked in SGVQliItl positions by means of a detent pin 38 arranged within a thimble 39 which has its lower open end secured in an opening in the slide 35. A" spring 40 is arranged between the upper end of the thiinble and a. shoulder 41 near the lower end of the pin and is adaptedto force the pin into any one of a series of detent holes 42 formed, as shown, in the top of the bearing 16. The upper end of the pin extends through an opening in the top of the thimble and is connected to a cylindrical finger piece 43 which fits over the thilnble. By lifting the finger piece and moving the same backward or forward the space regulater may be adjusted to any desired position, and locked by the release of the finger piece.

When the space regulator is in its foremost position shown in Figs. 1 and 2 and in full lines in Fig. 7, the arm 29 of the pawl rests upon the inclined surface 30" of the flange 30 and if the pawl be moved rearward, the arm 29 which is pressed gently downward by the spring 31 drops off of the surface 30 at an early point inthe movement of the pawl and engages a tooth low down ,upon the forward side of the ratchet-wheel, and the continued movement of the pawl rotates the platen for the widest spacing. When the space regulator is moved rearward as far as possible, as indicated in dotted lines in Fig. 7, it will be evident that the arm 29 will normally rest upon the inclined surface 30, as shown, and that the pawl will be held out of engagement with the ratchet-wheel during the greater part of its movement. as the pawl cannot engage the ratchetwheel until the arm 29 passes off the incline 30. The pawl will therefore engages tooth higher up on the ratchet-wheel and the platen will be moved a distance suilnlile for single spacing. in the intermediate position ol lllt spuco rcgulntor the arm will normally rest upon an inli-l'mediute portion of the ilzmgc 30 and the pawl will ill] intermediate distance upon the flange licl'oro engaging the ratchet-win-el, thus causing an intermediate movement of the platen.

It will be evident that tho mechanism described may be varied more or less without departing from the spirit. of the invention.

'lhcrciorc. without limiting myself to the precise construction and arrangement of parts illustrated and described. I claim:

machine. the combination with the platen and its ratchet. ofu pawl for turning the ratchet to SIHFI bi tu'ccn llltl'N. nu elbow lcvcr carrying solid pawl. n rock sltot't lmvingJm arm. a part interposed between ziid arm and the elbow l ver. and n cnrrL-tgv return bundle connected to said slml't.

2. In :1 typewrltinu' machine. [Ito combination with the pfnten and its ratchet. of n pawl for turning the ratchet to space between lines, said pawl standingnor-molly apart from the ratchet. a lever carrying snitl pnwl. :l spiing connecting the pawl with the lever to urge the pawl into position for engagement with the rntchct. and vsecond pring operating upon the lever to hold the pawl normally .awny from the ratchet.

2;. in :1 typcwriting machine. the combination with the platen and its ratchet. of a pawl for moving the ratchet. a stop arm curried by the pawl and adapted to engage the ratchet to limit the movement of the pawl. an elbow lever upon which said pawl and stop arm are pivotally mounted. a rock shaft having an arm for moving said elbow lever. and a carriage return handle connected to said rock shaft.

-l. in a typewriling machine. the combination with the platen and its ratchet, of a pawl for moving the ratchet. a stop arm rigidly connected to the pawl. n lever carrying said pawl and stop arm. a rock'sbuft and connections for moving said lever, and an ludcpcndent stop for limiting: the movement of said rock shaft.

3. in a typewriting machine. the combination with the plnten and its ratchet. of a pawl moving in -fhc plane of H1. l.ll-"ll"l for engaging the ratchet to move the platen, 'n -I u space regu iting device comprising a slide movable [llilllt'l to the plrane of the ratchet. means for adjusting the slid! to different positions. and a support for the sluclng pawl carried by the slide and adapted to variably release the pawl and permit it to engage wlth the ratchet. depending upon the position of the slide.

(5. in n rypewrlting machine. 3 splice regulating device comprising a slide having :1 space pnwl'snpporting portion. menus for guiding the slide. and locking menus comprising a sprin: plunger. a illlnll lb' connected to the slide and inclosing anlguiding snid plunger. a cylindrical handle fittirig over said thinlble and secured to said plunger. series of holes to co-ipernte with said plunger and hold the slide in different positions.

7. in a typcwriting' lilac-blu a line space regulating device comprising a \lltlf provided with guide slots and havlm, inclined surfaces.

1. in n Upcxvritin;

slide in different positions.

in testimony whereof I have signed my name to this specification in the presence of two subscrlhlng witness-rs.

CARL tiALilt l IILNUN.

Witnesses C. .\i STEVENS, C. F. l'lmsons. 

